Antoine is too depressed to go on playing in his rock band. After wandering in the streets, he decides to seek an occupation. Unskilled as he is, he is lucky to be hired as the caretaker of an old Paris apartment building. He soon proves good at his job, even if he performs it a little eccentrically, and everybody grows fond of him. Antoine also develops a particular friendship with Mathilde, a recently retired woman who lives in the block and whose mental balance is deteriorating... 安东尼（古斯塔弗·德·科文 Gustave de Kervern 饰）曾是一位小有名气的音乐家，然而在四十岁的某一天，他不知道脑袋里哪根筋搭错了，毅然决然的放弃了自己的音乐事业，摇身一变成为了一位默默无闻的服务员。 这天，安东尼认识了一个名叫玛蒂尔达（凯瑟琳·德纳芙 Catherine Deneuve 饰）的女人，这个女人孤身一人独自居住在一幢公寓里，并且担任着公寓管理人的职责。起初，安东尼并不是很在意这个古怪的女人，直到有一天，玛蒂尔达告诉他，自己的卧室墙壁上出现了一道裂缝，并且这道裂缝正在变得越来越大。玛蒂尔达对于裂缝的担忧逐渐加重并且转变成为了恐惧，在向玛蒂尔达伸出援手的过程中，安东尼渐渐的和她成为了朋友。
